[FIX] base_external_referentials: fix typo
[FIX] base_external_referentials: fix typo


Endika/connector,BT-ojossen/connector,hugosantosred/connector,js-landoo/connector,hugosantosred/connector,anybox/connector,Antiun/connector,BT-ojossen/connector,acsone/connector,Endika/connector,guewen/connector,BT-jmichaud/connector,MindAndGo/connector,fevxie/connector,esousy/connector,open-synergy/connector,Antiun/connector,mohamedhagag/connector,zhaohuaw/connector,anybox/connector,mohamedhagag/connector,esousy/connector,BT-jmichaud/connector,acsone/connector,brain-tec/connector,acsone/connector,guewen/connector,zhaohuaw/connector,MindAndGo/connector,BT-fgarbely/connector,brain-tec/connector,sylvain-garancher/connector,gurneyalex/connector,dvitme/connector,fevxie/connector,brain-tec/connector,dvitme/connector,gurneyalex/connector,open-synergy/connector,sylvain-garancher/connector,js-landoo/connector,maljac/connector,maljac/connector,BT-fgarbely/connector